The　nonlinear　vibrations　and　responses　of　a　laminated　composite　cantilever　plate　under　the　subsonic　air　flow　are　investigated　in　this　paper.　The　subsonic　air　flow　around　the　three-dimensional　cantilever　rectangle　laminated　composite　plate　is　considered　to　be　decreasing　from　the　wing　root　to　the　wing　tip.　According　to　the　ideal　incompressible　fluid　flow　condition　and　the　Kutta-Joukowski　lift　theorem,　the　subsonic　aerodynamic　lift　on　the　three-dimensional　finite　length　flat　wing　is　calculated　by　using　the　Vortex　Lattice　(VL)　method.　The　finite　length　flat　wing　is　modeled　as　a　laminated　composite　cantilever　plate　based　on　Reddy＇s　third-order　shear　deformation　plate　theory　and　the　von　Karman　geometry　nonlinearity　is　introduced.　The　nonlinear　partial　differential　governing　equations　of　motion　for　the　laminated　composite　cantilever　plate　subjected　to　the　subsonic　aerodynamic　force　are　established　via　Hamilton＇s　principle.　The　Galerkin　method　is　used　to　separate　the　partial　differential　equations　into　two　nonlinear　ordinary　differential　equations,　and　the　four-dimensional　nonlinear　averaged　equations　are　obtained　by　the　multiple　scale　method.　Through　comparing　the　natural　frequencies　of　the　linear　system　with　different　material　and　geometric　parameters,　the　relationship　of　1　:　2　internal　resonance　is　considered.　Corresponding　to　several　selected　parameters,　the　frequency-response　curves　are　obtained.　The　hardening-spring-type　behaviors　and　jump　phenomena　are　exhibited.　The　influence　of　the　force　excitation　on　the　bifurcations　and　chaotic　behaviors　of　the　laminated　composite　cantilever　plate　is　investigated　numerically.　It　is　found　that　the　system　is　sensitive　to　the　exciting　force　according　to　the　complicate　nonlinear　behaviors　exhibited　in　this　paper.